All objects in the scene are logically named and grouped and haveyour Multi / sub-object material.The model is made for anti-aliasing so that you can control the density of the mesh for a particular frame. MeshSmooth modifier is on (display in the viewport - 0 iterations, on render 2 iterations).OBJ file without anti-aliasing - add as you see fit.The archive contains the following files:
For Corona render, it is recommended to install a version not lower than 1.5, since the glossiness of the materials is adjusted with PBR in mind. If your VRAY version is higher than 3.1, then at the end of the description add the text: “Who works in V-Ray version lower than 3.1, be careful, in the materials in the BRDF section there is Microfaset GTR (GGX), if your version is older than 3.1, then the BRDF field will be blank. Choose Blinn, Phong or Ward - which is preferable for you "